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Two wires - A and B - with circular cross-sections have identical lengths and are made of the same material. Yet, wire A has four times the resistance of wire B. How many times greater is the diameter of wire B than wire A?
Two point charges of +3.0μF and -7.0μF are placed at x=0 and x=0.20m. What is the magnitude of the electric field at the midway point between them
A 300 ohm feedline is to beconnected to a 5-m long, 200 ohm line terminated in a 150 ohmantenna resistor. Both lines are lossless and use air as aninsulating material, and the operating frequency is 30MHz.
The filter is to have less than 1 dB ripple in the passband compared to the response at DC. The passband is to extend to at least 16 kHz. In addition, the stopband attenuation is to be at least 65 dB, starting at the Nyquist frequency of 22.05 k..
A material with a bulk resistivity of p = 120 Om is to be used to manufacture a 75 kO resistor that must dissipate P = 80 W of power. The maximum allowable current density for this material is J = 120 A/m2.
A three-phase 5 hp, 208 V motor has an efficiency of 92%, and a power factor of 0.87 (lagging) when it runs at full power. Calculate the motor phase currents and line currents if the motor is wye connected, and delta connected.
A line charge with density 2nC/m exists at y= -2, x=0. Find the electric field intensity at the origin. Now we wish to place a point charge Q=8nC at such a point so that the total electric field is zero at the origin. Determine the location of the..
Write the VHDL text file for a circuit to implement the arithmetic circuit that subtracts two 12-bit numbers (B from A) and adds a third 12-bit number (C) from the result. Use INTEGER types
A CB amplifier is operating with RL = 10kΩ, Rc = 10kΩ, and Rsig =100Ω. At what current Ic should the transistor be biased for the input resistance Rin to equal that of the signal source. What is the resulting overall voltage gain. Assume α ≈ 1
A dielectric rod of radius 10mm extends along the z axis from z=0 to z=10m. The polarization of the rod is P = [2z^2+ 10] az (az ==> is towards the z component in other words its the the unit vector k )
Design a 4-bit asynchronous down counter with truncated sequence that counts down a truncated sequence from 1111 to 0101. On reaching the count value 0100, the counter must preset to 1111.
A semiconductor, in thermal equilibrium, has a hole concentration of p0 = 2x1016 cm-3. The minority carrier life time = 3x10-7 s. (Assume, ni = 1010 cm-3) (a) Determine the thermal equilibrium recombination rate of electrons.
How do you write Kirchhoff's voltage law equation for a circuit.
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